JOHNS HOPKINS UNIVERSITY
NPI 1295731966
Urology in Baltimore, MD

NPI Status: Active since June 27, 2005

Contact Information

601 N CAROLINE ST
BALTIMORE, MD
ZIP 21287
Phone: (410) 955-5000

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  • Organization
  • Urology

About JOHNS HOPKINS UNIVERSITY

This page provides the complete NPI Profile along with additional information for Johns Hopkins University, a provider established in Baltimore, Maryland operating as a Urology. The healthcare provider is registered in the NPI registry with number 1295731966 assigned on June 2005. The practitioner's primary taxonomy code is 208800000X. The provider is registered as an organization and their NPI record was last updated March 2026. Johns Hopkins University operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's . The authorized official of this NPI record is Nicholas Giarratano (Director, Provider Enrollment)

NPI
1295731966
Provider Legal Name
JOHNS HOPKINS UNIVERSITY
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
601 N CAROLINE ST BALTIMORE, MD 21287
Location Phone
(410) 955-5000
Mailing Address
6201 GREENLEIGH AVE MIDDLE RIVER, MD 21220
Mailing Phone
(410) 933-6423
Mailing Fax
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
06-27-2005
Last Update Date
03-18-2026
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Location Map

Secondary Locations

  • 600 N Wolfe St
    Baltimore, MD 21287
    (410) 955-5000

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Urology

Taxonomy Code
208800000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

NICHOLAS GIARRATANO

Authorized Official Title
DIRECTOR, PROVIDER ENROLLMENT
Authorized Official Phone
(410) 933-0000

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
382181100MEDICAID (05)MD 
CD6091OTHER (01)MDRRMC
015843059MEDICAID (05)DC 

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1295731966, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
5
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
3
Unchanged
Pos 7
1
Doubled → 2
Pos 8
9
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
6
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 7 → 14 → 5 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 8 + 5 + 1 + 4 + 3 + 2 + 9 + 1 + 2 + 24 = 64

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1295731966.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Audiologist
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Gastroenterology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Physician Assistant
601 N CAROLINE ST, JHOC - B169
BALTIMORE, MD 21287
Pediatrics (Pediatric Pulmonology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner
601 N CAROLINE ST, # 7263
BALTIMORE, MD 21287
Dentist (Oral and Maxillofacial Surgery)
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner (Family)
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Psychologist (Clinical)
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287
Physician Assistant
601 N CAROLINE ST
BALTIMORE, MD 21287
Physician Assistant
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics
601 N CAROLINE ST
BALTIMORE, MD 21287
Nurse Practitioner (Adult Health)
601 N CAROLINE ST, JHOC B 169
BALTIMORE, MD 21287
Pediatrics
601 N CAROLINE ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Nephrology)
601 N CAROLINE ST
BALTIMORE, MD 21287
Medical Genetics (Clinical Genetics (M.D.))
601 N CAROLINE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
601 N CAROLINE ST
BALTIMORE, MD 21287

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295731966, enumerated as an "organization" on June 27, 2005.

The provider is located at 601 N CAROLINE ST BALTIMORE, MD 21287 and the phone number is (410) 955-5000.

Urology with taxonomy code 208800000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.